Ocean wind power freezing pile foundation erosion-resistant structure and construction method thereof

Abstract

The invention discloses an ocean wind power freezing pile foundation anti-erosion structure and a construction method thereof, and relates to the technical field of ocean engineering, the ocean wind power freezing pile foundation anti-erosion structure comprises an anti-erosion assembly, the anti-erosion assembly comprises a pile foundation and a sleeve arranged on the pile foundation in a sleeving mode, and a freezing pipe is fixed in the pile foundation; and the power generation assemblies are arranged on the two sides of the sleeve and comprise mounting plates fixed to the two sides of the sleeve, the tops of the mounting plates are movably connected with fan frames, and rotating pipes are fixed in the fan frames. Through the arrangement of the anti-erosion assembly, a freezing layer can be formed around the pile, so that the erosion effect of seawater on soil around the pile is reduced, then energy can be supplied to the freezing pipe through the power generation assembly, the freezing pipe can continuously conduct the freezing function on the soil, and meanwhile the direction of a fan in water can be automatically adjusted through the adjusting assembly according to the flowing direction of the seawater; ocean energy is fully utilized, so that the larger the impact force of seawater is, the higher the power generation efficiency is, the better the freezing and freezing effect is, and continuous erosion resistance can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering, and in particular to an anti-erosion structure of a marine wind power freezing pile foundation and a construction method thereof. Background Art

[0002] In order to reduce carbon emissions and protect the ecological environment, my country has carried out a lot of research on clean energy. Offshore wind power has attracted much attention as a clean, environmentally friendly and low-impact clean energy. However, under the continuous impact of ocean currents, waves and tides, the offshore wind power pile foundation will experience varying degrees of erosion around the piles, which not only shortens the life of a single pile, but may also cause the entire machine to overturn. Traditional riprap and concrete pouring methods can only slow down the erosion rate, but cannot solve this problem in the long term. Summary of the invention

[0003] Purpose of the invention: The problem to be solved by the present invention is that the traditional riprap and concrete pouring methods can only reduce the erosion rate but cannot solve such problems in the long term.

[0004] Technical solution: The present invention provides an anti-erosion structure for an offshore wind power freezing pile foundation, which includes an anti-erosion component, including a pile foundation, a casing sleeved on the pile foundation, a freezing pipe fixed in the pile foundation; a power generation component, arranged on both sides of the casing, including mounting plates fixed on both sides of the casing, a fan frame movably connected to the top of the mounting plate, a rotating tube fixed in the fan frame, mounting tubes fixed around the rotating tube, a mounting column rotatably connected in the mounting tube, a fan blade fixedly connected to one end of the mounting column, and a power generation component fixed to the bottom of the mounting plate; and an adjustment component, arranged in the rotating tube, including a trigger rod rotatably connected to the end of the mounting column, a first trigger component and a second trigger component are respectively arranged on both sides of the rotating tube, both of which cooperate with the trigger rod, and a fastener is fixed on the surface of the rotating tube, which cooperates with the two trigger components.

[0005] Furthermore, the power generation element of the structure includes a gear ring fixed on the rotating tube, a bevel gear is meshed at the bottom of the gear ring, a rotating shaft is fixed at the bottom of the bevel gear, and a power generation box is fixed at the bottom of the mounting plate.

[0006] Furthermore, the adjustment assembly of the structure also includes protrusions fixed on both sides of the mounting column, and the inner wall of the mounting tube is provided with arc grooves matching with the protrusions.

[0007] Furthermore, the first trigger member of the structure includes an extrusion tube sliding in the rotating tube, a first push plate is fixed to the end of the extrusion tube and located outside the rotating tube, and an inclined surface matching the extrusion tube is provided at the end of the trigger rod.

[0008] Furthermore, the first trigger member of the structure also includes a first fixed block fixed to the surface of the rotating tube, and a first guide rod is fixed to the inner side of the first push plate and slides in the first fixed block.

[0009] Furthermore, the second trigger member of the structure includes a movable ring sliding in a rotating tube, a mounting frame is fixed in the movable ring, a push rod and a connecting rod are respectively fixed on both sides of the mounting frame, the push rod cooperates with the extrusion tube, the end of the connecting rod is fixedly connected to a second push plate, a switching rod is fixed on the inner side of the movable ring, and a first oblique groove is opened in the trigger rod, which cooperates with the switching rod.

[0010] Furthermore, the second trigger member of the structure also includes a second fixed block fixed to the surface of the rotating tube, and a second guide rod is fixed to the inner side of the second push plate and slides in the second fixed block.

[0011] Furthermore, the fastener of the structure includes a fastening block fixed to the surface of the rotating tube, the fastening block is provided with an installation groove, an insert block is slidably connected to the installation groove, the first guide rod and the second guide rod are provided with slots matching therewith, a guide plate is fixed to the outer side of the insert block, a second oblique groove is provided therein, and a fixing rod matching therewith is fixed to the inner side of the first push plate and the second push plate.

[0012] Furthermore, the fastener of the structure also includes a spring sheet, which is fixed on the plug block and fixed to the inner wall of the installation groove.

[0013] Further, a preferred solution of the construction method of the anti-erosion structure of the marine wind power frozen pile foundation is as follows: a casing is fixed on the surface of the pile foundation to divert the flowing seawater, thereby reducing the force of the seawater washing the soil near the pile foundation;

[0014] The flowing seawater drives the power generation components to generate electricity, which in turn powers the freezing pipes, freezes the soil near the pile foundation, and forms a freezing protection layer.

[0015] By adjusting the components, the power generation components can automatically adjust the power generation direction according to the flow direction of seawater to achieve uninterrupted power generation;

[0016] Continuous power generation supplies the freezing pipes to improve the freezing effect of the soil around the piles.

[0017] Beneficial effects: Compared with the prior art, the significant advantages of the present invention are: through the setting of the anti-erosion component, a frozen layer can be formed around the pile, thereby reducing the erosion effect of seawater on the soil around the pile, and then the freezing pipe can be powered by the power generation component, so that it can continue to freeze the soil, and at the same time, the direction of the fan in the water can be automatically adjusted according to the flow direction of seawater through the adjustment component, so as to fully utilize the ocean energy. Therefore, the greater the impact force of seawater, the higher the power generation efficiency, the better the freezing and ice-sealing effect, and continuous anti-erosion can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structural diagram of the anti-erosion structure of the frozen pile foundation of offshore wind power and its construction method;

[0019] Figure 2 A cross-sectional view of the frozen pipe of the anti-erosion structure of the offshore wind power frozen pile foundation and its construction method;

[0020] Figure 3 The connection structure diagram of the power generation component and the regulating component of the anti-erosion structure of the marine wind power frozen pile foundation and its construction method;

[0021] Figure 4 It is a cross-sectional view of the connection between the power generation component and the regulating component of the anti-erosion structure of the marine wind power frozen pile foundation and its construction method;

[0022] Figure 5 It is a side view of the rotating tube of the anti-erosion structure of the offshore wind power frozen pile foundation and its construction method;

[0023] Figure 6 It is a side view of the second triggering member of the anti-erosion structure of the marine wind power frozen pile foundation and the construction method thereof;

[0024] Figure 7 A structural diagram of the connection between the first triggering member and the second triggering member of the anti-erosion structure of the marine wind power frozen pile foundation and the construction method thereof;

[0025] Figure 8 A cross-sectional view of fasteners for an anti-erosion structure of an offshore wind power frozen pile foundation and its construction method;

[0026] Fig. 9 The installation pipe structure diagram of the anti-erosion structure of the frozen pile foundation of offshore wind power and its construction method;

[0027] Fig.10 A top view of the connection between the first triggering member and the second triggering member of the anti-erosion structure of the marine wind power freezing pile foundation and the construction method thereof;

[0028] Fig.11 Another perspective view of the fasteners for the anti-erosion structure of the offshore wind power frozen pile foundation and its construction method. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 and Figure 4 , which is the first embodiment of the present invention. This embodiment provides an anti-erosion structure of an offshore wind power frozen pile foundation and a construction method thereof. The anti-erosion structure of an offshore wind power frozen pile foundation and a construction method thereof include an anti-erosion component 100, a power generation component 200 and an adjustment component 300. Through the use of the anti-erosion component 100 and the power generation component 200, an ice layer can be formed on the soil around the pile, thereby greatly reducing the impact force of seawater scouring the soil. At the same time, through the setting of the adjustment component 300, ocean energy can be more efficiently utilized to supply the freezing pipe, further improving the anti-erosion effect.

[0033] Specifically, the anti-erosion component 100 includes a pile foundation 101 and a sleeve 102 mounted on the pile foundation 101. The two ends of the sleeve 102 are tapered and are arranged in two directions where ocean currents often flow, so that the seawater flowing through the sleeve 102 can be guided to both sides, reducing its impact force on the pile foundation 101. At the same time, it can prevent excessive seawater from being blocked by the pile foundation 101 and washing down the soil around the pile, thereby reducing the erosion effect on the soil around the pile. The sleeve 102 can be set to be movable. According to different seasons, the angles of frequent impact of ocean currents are different. Those skilled in the art can adjust the positions of the two ends of the cone by themselves, and this part will not be elaborated here.

[0034] A freezing pipe 103 is fixed inside the pile foundation 101, and a refrigeration device is connected to the outside of the freezing pipe 103. Two groups of freezing pipes are provided. One group is provided inside the pile foundation 101 to freeze the soil around the pile to form a protective layer. The other group is provided around the pile foundation 101, distributed in a ring shape, and located in the soil around the pile to form an iced pile skirt around the pile, thereby further reducing the speed at which seawater erodes the soil around the pile.

[0035] The power generation component 200 is arranged on both sides of the sleeve 102, including a mounting plate 201 fixed on both sides of the sleeve 102, and a fan frame 202 is movably connected to the top of the mounting plate 201. The mounting plate 201 is L-shaped and plays a supporting role. A plurality of buckles are fixed on the inner side thereof. The staff can fix the fan frame 202 by means of buckles and bolts. Among them, the fan frame 202 can be symmetrically arranged in two groups or in one group. Only one group is shown in the figure. The technicians in this field can arrange this part as needed. A rotating tube 203 is fixed in the fan frame 202. Both sides of the surface of the rotating tube 203 are rotatably connected to a mounting frame through bearings. The other end of the mounting frame is fixed to the fan frame 202, and is used to fix the rotating tube 203 in a central position inside the fan frame 202 without hindering its rotation.

[0036] The rotating tube 203 is fixed with mounting tubes 204 around it, and the mounting tube 204 is rotatably connected with mounting columns 205, and one end of the mounting column 205 is fixedly connected with fan blades 206. When seawater impacts the fan blades 206, it can exert impact force on the fan blades 206, thereby driving the rotating tube 203 to rotate. A power generation element 207 is fixed at the bottom of the mounting plate 201. When the fan blades 206 rotate, the power generation element 207 is charged to generate electricity, thereby supplying energy to the freezing tube 103. The working principle of this part is the existing technology and will not be elaborated here.

[0037] The adjusting assembly 300 is arranged in the rotating tube 203, and includes a trigger rod 301 rotatably connected to the end of the mounting column 205. The trigger rod 301 is rotatably connected to the mounting column 205 through a bearing. A first trigger member 302 and a second trigger member 303 are respectively arranged on both sides of the rotating tube 203, both of which cooperate with the trigger rod 301. The first trigger member 302 and the second trigger member 303 are symmetrically arranged on both sides of the rotating tube 203. The deflection angle of the fan blade 206 can be adjusted according to the different directions of seawater flow to adapt to forces in different directions, thereby further improving its power generation efficiency. A fastener 304 is fixed on the surface of the rotating tube 203, which cooperates with the two trigger members. The fastener 304 can fix the first trigger member 302 and the second trigger member 303 respectively to avoid the trigger member on the other side from moving due to the shaking of seawater or external force when power generation is performed on one side, thereby affecting the power generation efficiency.

[0038] Example 2

[0039] Reference Figures 1 to 11 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0040] Specifically, the power generation element 207 includes a gear ring 207a fixed on the rotating tube 203, and a bevel gear 207b is meshed at the bottom of the gear ring 207a. The gear ring 207a can rotate with the rotating tube 203, thereby driving the bevel gear 207b to rotate, and since the diameter of the gear ring 207a is larger than the diameter of the bevel gear 207b, the power generation efficiency can be improved. The positions of the two in the figure are schematic diagrams, and those skilled in the art can adjust their positions as needed, which will not be elaborated here. A rotating shaft 207c is fixed to the bottom of the bevel gear 207b, and a power generation box 207d is fixed to the bottom of the mounting plate 201. The internal structure and working principle of the power generation box 207d are all existing technologies, and the sealing conditions and other conditions can be set as needed by those skilled in the art, which will not be elaborated here.

[0041] The adjustment component 300 also includes protrusions 305 fixed on both sides of the mounting column 205. The inner wall of the mounting tube 204 is provided with an arc groove S that cooperates with the protrusions 305. There are two protrusions 305 and two corresponding arc grooves S. The cooperation of this part is that when the trigger rod 301 and the mounting column 205 move up and down, the protrusion 305 will move in the arc groove S, thereby driving the mounting column 205 and the fan blade 206 to rotate, and adjusting the deflection angle of the fan blade 206 so that it can adapt to the ocean currents impacting from two positions.

[0042] The first trigger member 302 includes an extrusion tube 302a that slides in the rotating tube 203, which is conical, and the mounting tube 204 is located at one end of the rotating tube 203 and is fixed with a guide bar, and sliders are fixed on both sides of the trigger rod 301, which slide on the guide bar, and the two limit the trigger rod 301 to prevent it from rotating during the up and down movement, and a groove for the guide bar to slide is opened on the extrusion tube 302a to prevent the extrusion tube 302a from touching the guide bar when moving, and a first push plate 302b is fixed at the end of the extrusion tube 302a and located on the outside of the rotating tube 203, and the first push plate 302b is far away from the extrusion tube 302a. The side of the first push plate 302b is an arc surface, and when seawater impacts this surface, it can apply a greater force to it.

[0043] The end of the trigger rod 301 is provided with an inclined surface V that cooperates with the extrusion tube 302a. When the extrusion tube 302a is pushed toward the direction of the trigger rod 301 by the force of the seawater and the first push plate 302b, its tapered outer wall contacts the inclined surface V and drives the extrusion tube 302a to move into the mounting tube 204. At this time, the mounting column 205 and the fan blade 206 are driven to move by the trigger rod 301. Since the protrusion 305 moves in the arc groove S, the mounting column 205 and the fan blade 206 are driven to rotate during the movement of the trigger rod 301, and the deflection angle of the fan blade 206 is adjusted to make it rotate to adapt to the direction of the seawater flow.

[0044] The first trigger member 302 also includes a first fixed block 302c fixed on the surface of the rotating tube 203. Two first fixed blocks 302c are provided and are staggered. A first guide rod 302d is fixed to the inner side of the first push plate 302b, which slides in the first fixed block 302c. The first fixed block 302c and the first guide rod 302d are used to limit and guide the first push plate 302b to avoid displacement during movement.

[0045] The second trigger member 303 includes a movable ring 303a sliding in the rotating tube 203, a mounting frame 303b is fixed in the movable ring 303a, the mounting frame 303b is cross-shaped and is used to support the movable ring 303a, push rods 303c and connecting rods 303d are fixed on both sides of the mounting frame 303b, the push rod 303c cooperates with the extrusion tube 302a, a cross fixing frame is fixed inside the end of the extrusion tube 302a away from the first push plate 302b, the push rod 303c is used to push the cross fixing frame and the extrusion tube 302a, when the movable ring 303a moves toward the extrusion tube 302a, it can push the extrusion tube 302a to move toward the outside of the rotating tube 203, the end of the connecting rod 303d is fixedly connected to the second push plate 303e, the side of the second push plate 303e away from the mounting frame 303b is an arc-shaped surface, when the sea water impacts this surface, it can apply a greater force to it.

[0046] A switching rod 303f is fixed on the inner side of the movable ring 303a, and a first inclined groove P1 is provided in the trigger rod 301, which cooperates with the switching rod 303f. The end of the switching rod 303f is chamfered. When the second push plate 303e and the movable ring 303a move toward the inside of the rotating tube 203, the push rod 303c first pushes the extrusion tube 302a away from the trigger rod 301, and at the same time, the switching rod 303f slides in the first inclined groove P1 and drives the trigger rod 301 to move toward the inside of the rotating tube 203. At this time, the mounting column 205 and the fan blade 206 are driven to move by the trigger rod 301. Since the protrusion 305 moves in the arc groove S, the mounting column 205 and the fan blade 206 are driven to rotate during the movement of the trigger rod 301, and the deflection angle of the fan blade 206 is adjusted to make it rotate in the direction of the seawater flow.

[0047] The second trigger member 303 also includes a second fixed block 303g fixed on the surface of the rotating tube 203, and a second guide rod 303h is fixed on the inner side of the second push plate 303e, which slides in the second fixed block 303g. There are two second fixed blocks 303g, which are staggered. The positions of the two first fixed blocks 302c and the two second fixed blocks 303g are staggered to avoid mutual interference between the first push plate 302b and the second push plate 303e when they move. The second push plate 303e is guided and limited by the second fixed block 303g and the second guide rod 303h to avoid displacement or rotation during movement.

[0048] The fastener 304 includes a fastening block 304a fixed to the surface of the rotating tube 203. The fastening block 304a is provided with two groups, which act on the first push plate 302b and the second push plate 303e respectively. An installation groove H is provided in the fastening block 304a, and an insertion block 304b is slidably connected in the installation groove H. The first guide rod 302d and the second guide rod 303h are both provided with a slot M matching therewith. When the first push plate 302b or the second push plate 303e is in the use position, the insertion block 304b will be correspondingly inserted in the slot M, thereby fixing the position of the push plate to avoid the push plate being offset or shaking due to impact force from other places during the rotation of the fan blade 206, thereby affecting the power generation efficiency.

[0049] A guide plate 304c is fixed to the outside of the plug block 304b, and a second inclined groove P2 is opened inside the plug block 304b. A fixed rod 304d matching with it is fixed to the inside of the first push plate 302b and the second push plate 303e. When the push plate on one side is in use and the seawater changes its impact direction and impacts the push plate on the other side, the push plate on the other side will move toward the inside of the rotating tube 203, first driving the fixed rod 304d to slide into the second inclined groove P2, and then driving the guide plate 304c and the plug block 304b to move through the fixed rod 304d, so that the plug block 304b is disengaged from the slot M, so that the push plate on one side can be reset to move to the outside of the rotating tube 203, and the push plate on the other side will move toward the inside of the rotating tube 203, and when it moves to the final position, the corresponding plug block 304b will be correspondingly inserted into the slot M on its guide rod, so as to adjust the angle of the fan blade 206.

[0050] The fastener 304 further includes an elastic sheet 304e, which is fixed on the inserting block 304b and fixed to the inner wall of the mounting slot H. The elastic sheet 304e applies elastic force to the inserting block 304b, so that the inserting block 304b is more stable when inserted into the slot M.

[0051] Example 3

[0052] Reference Figures 1 to 11 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0053] Specifically, the following construction methods are also included:

[0054] A sleeve 102 is fixed on the surface of the pile foundation 101 to divert the flowing seawater, thereby reducing the force of the seawater washing the soil near the pile foundation 101. The sleeve 102 can be set to be movable. According to different seasons, the angles of the ocean currents often impact are different. Those skilled in the art can adjust the positions of the two ends of the cone by themselves, and this part will not be repeated here;

[0055] The flowing seawater drives the power generation assembly 200 to generate electricity for the operation of the freezing pipe 103, and freezes the soil near the pile foundation 101 to form a frozen protective layer. The freezing pipe 103 is externally connected to a refrigeration device, which is provided with two groups. One group is provided in the pile foundation 101 to freeze the soil near the pile to form a protective layer, and the other group is provided around the pile foundation 101, distributed in an annular shape, and located in the soil around the pile to form an iced pile skirt near the pile. Therefore, a conical ice layer will be formed around the pile foundation 101, and the protective effect is better.

[0056] The regulating component 300 enables the power generation component 200 to automatically adjust the power generation direction according to the flow direction of the seawater to perform uninterrupted power generation;

[0057] The continuous power generation supplies the freezing pipe 103 to operate, thereby improving the freezing effect of the soil around the pile.

Claims

1. An anti-erosion structure for marine wind power frozen pile foundation, characterized by: include, The anti-erosion component (100) comprises a pile foundation (101), a sleeve (102) sleeved on the pile foundation (101), and a freezing pipe (103) fixed inside the pile foundation (101); A power generation assembly (200) is arranged on both sides of the sleeve (102), comprising a mounting plate (201) fixed on both sides of the sleeve (102), a fan frame (202) being movably connected to the top of the mounting plate (201), a rotating tube (203) being fixed inside the fan frame (202), a mounting tube (204) being fixed around the rotating tube (203), a mounting column (205) being rotatably connected inside the mounting tube (204), a fan blade (206) being fixedly connected to one end of the mounting column (205), and a power generation component (207) being fixed to the bottom of the mounting plate (201); and, The adjustment assembly (300) is arranged in the rotating tube (203), and comprises a trigger rod (301) rotatably connected to the end of the mounting column (205); a first trigger member (302) and a second trigger member (303) are respectively arranged on both sides of the rotating tube (203), both of which cooperate with the trigger rod (301); a fastener (304) is fixed on the surface of the rotating tube (203), which cooperates with the two trigger members.

2. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 1, characterized in that: The power generation element (207) comprises a gear ring (207a) fixed on the rotating tube (203), a bevel gear (207b) meshing at the bottom of the gear ring (207a), a rotating shaft (207c) fixed at the bottom of the bevel gear (207b), and a power generation box (207d) fixed at the bottom of the mounting plate (201).

3. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 1 or 2, characterized in that: The adjustment assembly (300) further comprises protrusions (305) fixed on both sides of the mounting column (205), and the inner wall of the mounting tube (204) is provided with arc-shaped grooves (S) matching the protrusions (305).

4. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 3 is characterized by: The first trigger member (302) comprises an extrusion tube (302a) sliding in the rotating tube (203), a first push plate (302b) being fixed at the end of the extrusion tube (302a) and located outside the rotating tube (203), and an inclined surface (V) cooperating with the extrusion tube (302a) is provided at the end of the trigger rod (301).

5. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 4, characterized in that: The first trigger member (302) further comprises a first fixed block (302c) fixed to the surface of the rotating tube (203), and a first guide rod (302d) is fixed on the inner side of the first push plate (302b) and slides in the first fixed block (302c).

6. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 5, characterized in that: The second trigger member (303) comprises a movable ring (303a) sliding in the rotating tube (203), a mounting frame (303b) being fixed in the movable ring (303a), a push rod (303c) and a connecting rod (303d) being fixed on both sides of the mounting frame (303b), the push rod (303c) being matched with the extrusion tube (302a), a second push plate (303e) being fixedly connected to the end of the connecting rod (303d), a switching rod (303f) being fixed on the inner side of the movable ring (303a), and a first inclined groove (P1) being provided in the trigger rod (301) and being matched with the switching rod (303f).

7. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 6, characterized in that: The second trigger member (303) further comprises a second fixed block (303g) fixed to the surface of the rotating tube (203), and a second guide rod (303h) is fixed on the inner side of the second push plate (303e) and slides in the second fixed block (303g).

8. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 7, characterized in that: The fastener (304) comprises a fastening block (304a) fixed to the surface of the rotating tube (203), a mounting groove (H) being provided in the fastening block (304a), an insert block (304b) being slidably connected in the mounting groove (H), a slot (M) matching therewith being provided on the first guide rod (302d) and the second guide rod (303h), a guide plate (304c) being fixed on the outer side of the insert block (304b), a second inclined groove (P2) being provided inside the insert block (304b), and a fixing rod (304d) matching therewith being fixed on the inner side of the first push plate (302b) and the second push plate (303e).

9. The anti-erosion structure of the marine wind power frozen pile foundation according to claim 8, characterized in that: The fastener (304) further comprises a spring sheet (304e), which is fixed on the insert block (304b) and fixed to the inner wall of the installation slot (H).

10. A construction method for an anti-erosion structure of an offshore wind power frozen pile foundation, characterized in that: The invention comprises the anti-erosion structure according to any one of claims 1 to 9, and further comprises the following construction method: A sleeve (102) is fixed on the surface of the pile foundation (101) to divert the flowing seawater, thereby reducing the force of the seawater washing the soil near the pile foundation (101); The flowing seawater drives the power generation assembly (200) to generate electricity, which is used to operate the freezing pipe (103), and freezes the soil near the pile foundation (101) to form a freezing protection layer; The regulating component (300) enables the power generation component (200) to automatically adjust the power generation direction according to the flow direction of seawater, so as to perform uninterrupted power generation; The continuous power generation supplies the freezing pipe (103) to operate, thereby improving the freezing effect of the soil around the pile.

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